NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 3 (NDUFA3) is a 84-residue protein from Homo sapiens. This is its AlphaFold structure prediction, created 1 Aug 2025. UniProt accession: O95167.
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The mean pLDDT of this model is 96.8 (very high overall). pLDDT is AlphaFold's per-residue confidence score from 0 to 100. In MolViewer, choose the B-factor color scheme to color the model by pLDDT, because AlphaFold stores it in the B-factor column.
| pLDDT band | Meaning | Share of residues |
|---|---|---|
| Above 90 | Very high: backbone and side chains are usually accurate | 98% |
| 70 to 90 | Confident: backbone generally right | 2% |
| 50 to 70 | Low: treat with caution | 0% |
| Below 50 | Very low: often disordered regions | 0% |
What pLDDT means and how to read it
Accessory subunit of the mitochondrial membrane respiratory chain NADH dehydrogenase (Complex I), that is believed not to be involved in catalysis. Complex I functions in the transfer of electrons from NADH to the respiratory chain. The immediate electron acceptor for the enzyme is believed to be ubiquinone
Complex I is composed of 45 different subunits
Mitochondrion inner membrane
Compare the prediction with experimentally determined structures of the same protein:
| PDB ID | Method | Resolution | Chains and residues |
|---|---|---|---|
| 9I4I | EM | 2.63 Å | U=1-84 |
| 9TI4 | EM | 2.66 Å | U=2-84 |
| 9CWT | EM | 3.44 Å | U=1-84 |
| 5XTC | EM | 3.7 Å | U=2-84 |
| 5XTD | EM | 3.7 Å | U=2-84 |
| 5XTH | EM | 3.9 Å | U=2-84 |
| 5XTI | EM | 17.4 Å | BU/U=2-84 |
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